Rear end advice for racing with a 4 speed

Wow thanks for all the replies everyone. To be honest I wouldn’t consider putting in a Ford 9”, my car is a lot of things, cruiser, the odd car show, drag racing now, and of course a mopar, I just can’t cross that line of putting in a 9” even though a lot of guys do.

It’s definitely sounding like a Dana60 is the way to go with the 4-speed, my car’s insured for another few weeks and then that’s probably what I’ll follow through with over winter.

Thanks for all the replies guys! Mike N.
Nothing wrong with brand loyalty at all. I guarantee, Mopar guys would rather see a 60 than a 9.
I've got a 4.10 Dana in my rr, and an 8 3/4 dapco locker in my savoy.
My nines are in an Opel, and an English Ford. But brand loyalty has nothing to do with those two.